When you start talking schedule this and that, I am way lost.
When you start talking schedule this and that, I am way lost.
Read the last line concerning the effects from the compressor oil that will get onto every square inch inside that PVC pipe.
From U.S. Plastics:
No, PVC and CPVC pipe should not be used for compressed air lines.
Here is what the manufacture has to say about it.
WARNING! The use of plastic piping with compressed air or gasses can result in severe bodily injury or death.
Harvels PVC and CPVC piping products are rigid thermoplastic materials. Harvel Plastics, Inc does not recommend the use of PVC or CPVC piping products for testing, transport, and storage of compressed air or gas. The compressibility of air and/or other gases result in tremendous amounts of stored energy, even at lower pressures. Should failure occur in a compressed air or gas system for any reason (i.e. improper assembly, mechanical damage, etc.) the failure mode will be very dramatic in nature due to the physical characteristics of the rigid piping in combination with the immediate release of stored energy. Under these conditions, the velocity created by rapidly escaping air and the resultant failure mode can throw shards of plastic in multiple directions (i.e. shrapnel/projectiles). This scenario creates a substantial hazard to personnel and property within the vicinity of the piping should a failure occur. Several cautionary statements and alerts against the use of rigid PVC/CPVC piping for use with compressed air or gasses are available through the Plastic Pipe Institute(PPI), American Society for Testing(ASTM), various other trade organizations, manufacturers, safety codes, as well as several State and federal Agencies(i.e. OSHA).
Compressed air or other gasses should never be used in testing. Extreme care should be used to assure complete venting of all entrapped air when filling the system with water or other liquids used in testing. Whether hydraulic hand pump or available water line pressure is used, any slow build-up of gauge pressure in a completely liquid filled line shows some entrapped air in the system. Pressure should be immediately released and the line re-bled. Failure to do this can lead to a catastrophic failure when the decompressing gas suddenly accelerates the solid water column if a faulty joint separates.
PVC and CPVC piping systems are not recommended for compressed air lines. Improper installation, especially poor cementing techniques can lead to an abrupt release of tremendous stored energy. Shattering of pipe and fittings is then apt to occur at directional changes and at point where the system is rigidly restrained due to instantaneous whipping action imparted by the escaping air. Internal surface cracks, due to the stress, ca be initiated which will tend to propagate and cause shattering, hairline or pinhole cracks over a period of time. There is also evidence that certain additives to system lubricants will initiate internal stress cracking which will again lead to similar failure over extended periods of time.
Well, I tell yall what. Any of yall wanna come over hear and replace what I got with something better, bring it on. All I can afford is what I got.
I would rather use air hoses and hang them on the wall rather than take a chance with PVC. My buddy loosing an eye and spending a long time in the hospital taught me a lesson. Much cheaper to use something safe rather than chance boing maimed for life or dead. If I walk in to a shop and see PVC being used for an air line I go out the door immediately.
I've read some places to not used galvanized for air because little "flakes" can break off and get in your air stream. But, I would think they would be big enough for a filter to easily remove? I don't know. I have no experience with it myself, just saying what I've read in case anyone else has any add'l experience using it. I'd sure like to know in case I ever need to replace what I have.
I didn't use galvanized myself, just regular black iron, and so far so good. If I had any sort of plastic pipe, I would make my very next expenditure iron for safety.
I can say I have never seen an issue myself but I won't say it can't because I can't say for sure.
I used to work for Mercury Marine/Mercruiser in the maintenancedepartment and galvanized is what we had in the entire building, even on all three paint lines. We was running 160psi if my memory is correct.
When I opened up my mattress company I used galvanized throughout all the manufacturing area and on all the pneumatic operated machines/cutters . I never saw anything from the inside of the lines.
We ran galvanized in a buddy's body shop and he never had issues with it.
I will note that all this was 1988 and before with American manufactured pipe so maybe things may have changed with all the imported pipe.
I will call my buddy that owns Kicker Corporation and see what they are using since they moved in to a bigger set up about 5 or 6 years ago.
at my work we also have about 2' piece of tubing drop straight down below a Tee fitting for the quick connects coming out of the walls, at the bottom of this we have a ball valve, and a rubber hose vented outside the building.this way as the heated air cools and condenses it collects in the tube below where your air hose fitting is. periodically you open the ball valve and drain the collected moisture right outside.
i plan on doing this in my shop. i will be sweat fitting a copper pipe manifold and have a flexible line from compressor to the air manifold long enough to move my compressor outside when i am using it. i have a 22V 60 gallon upright i mounted on a 1/2" aluminum plate , and it has some craftsman tool box wheels under the plate to easily move it.
My black pipe setup didn't cost all that much. I can't really remember for sure offhand, it was a few years ago, but it couldn't have been more than $250 for everything. Just don't buy that /6 from the jackalope in the other thread and you're there LOL